gh-address-comments

# PR Comment Handler

Guide to find the open PR for the current branch and address its comments with gh CLI. Run all `gh` commands with elevated network access.

Prereq: ensure `gh` is authenticated (for example, run `gh auth login` once), then run `gh auth status` with escalated permissions (include workflow/repo scopes) so `gh` commands succeed. If sandboxing blocks `gh auth status`, rerun it with `sandbox_permissions=require_escalated`.